Novel in situ imaging technology to explore the 鈥渓adder of vertical migrations鈥 to the deep sea
Sea-Through
Novel in situ imaging technology to explore the 鈥渓adder of vertical migrations鈥 to the deep sea
The pelagic deep ocean is the largest but least-understood habitat on Earth, harboring enormous fish stocks, a rich (and largely undiscovered) biodiversity, as well as a large carbon sink in the climate system. As almost all life at depth is ultimately nourished by primary production in the surface ocean, pathways of 鈥渧ertical connectivity鈥 are critical in linking ecological and biogeochemical processes across several thousands of meters. One of the most enigmatic phenomena is the so far virtually unexplored 鈥渓adder of vertical migrations鈥: this mechanism is hypothesized to link food-webs across the entire oceanic water column through a complex
interplay of feeding-interactions and synchronized migrations of a multitude of species, thereby supporting pelagic life at depths of up to several kilometers. So far, very little is known about this phenomenon, mainly due to the methodological challenges of studying organisms and their behavior at ecologically relevant spatial and temporal scales, particularly under the extreme pressure in the deep sea.
SEA-THROUGH aims for a breakthrough by providing 鈥渁 new set of glasses鈥 to study the so far unexplored 鈥渓adder of migrations鈥. To achieve this, we will:
(a) Develop novel in situ imaging technology for unparalleled and highly detailed observations of organisms in the deep sea (to 6000m depth): 鈥渨ho is where at which time and what are they doing鈥
(b) Use this new deep-sea imaging system on ship expeditions for targeted studies of the enigmatic 鈥渓adder of migrations鈥
Pushing the limits of in situ observation technology will reveal a holistic picture of biodiversity and food-web structure, providing novel insights into the functioning of deep-sea ecosystems and their ecological and biogeochemical connectivity across the water column 鈥 knowledge that is urgently needed for evaluating the ecosystem services of the deep ocean (e.g. fisheries, CO2 sequestration), as well as the sustainable management of this vast habitat.
September, 2024
August, 2029
1997000
1997000
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Other
/ ERC Consolidator Grant
Helmholtz-Zentrum f眉r Ozeanforschung Kiel (91探花), Germany